/*  
 *  Copyright 2006 Paul Jack.
 *
 *  This file is part of the Dex compiler suite. 
 *  
 *  Dex is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the
 *  Free Software Foundation; either version 2 of the License, or (at your
 *  option) any later version.
 *  
 *  Dex is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 *  Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
package dex.compiler.checker.type;


/**
 * Represents a type error.
 */
final public class ErrorType extends Type {


	/**
	 * The singleton instance.
	 */
	public static ErrorType INSTANCE = new ErrorType();
	
	
	/**
	 * Private to enforce the singleton pattern.
	 */
	private ErrorType() {
	}


	/**
	 * Returns false.  There is no particular reason.
	 * 
	 * @return false, always
	 */
	public boolean isLocal() {
		return false;
	}


	/**
	 * Returns false.  There is no particular reason.
	 * 
	 * @return false, always
	 */
	public boolean isCompound() {
		return false;
	}


	/**
	 * Returns false.  There is no particular reason.
	 * 
	 * @return false, always
	 */
	public boolean canAssignTo(Type t) {
		return false;
	}


	@Override
	public String toString() {
		return "$error$";
	}

}
